Kev siv thiab ceev faj ntawm cov ntaub ntawv multimeter kuj
Kev ntsuas ntsuas ntsuas ceev faj
(1) Yog tias qhov ntsuas ntsuas tus nqi siab tshaj qhov siab tshaj plaws ntawm qhov kev xaiv ntau, cov zaub yuav qhia ntau tshaj "1", koj yuav tsum xaiv ntau dua, rau cov resistors ntau dua 1 MΩ lossis siab dua, nws yuav siv sijhawm li ob peb feeb. rau kev nyeem ntawv kom ruaj khov, nws yog ib txwm muaj rau kev nyeem ntawv siab.
(2) Thaum tsis muaj cov tswv yim, xws li qhib Circuit Court, cov zaub yog "1".
(3) Thaum kuaj xyuas cov kab hauv impedance, xyuas kom meej tias tag nrho cov khoom siv hluav taws xob ntawm cov kab hauv qab kev sim raug txiav thiab tag nrho cov capacitors raug tso tawm.
(4) 200MΩ luv Circuit Court txog plaub lo lus, kev ntsuas yuav tsum tau muab rho tawm los ntawm kev nyeem ntawv, xws li ntsuas l00MΩ tsis kam, cov zaub yog 101.0, plaub lo lus yuav tsum tau muab rho tawm.
(5) muaj cov ntaub ntawv tiv thaiv tsis zoo ntawm lub peev xwm yog qhov zoo lossis qhov tsis zoo, nrog tus cwj mem liab txuas nrog lub davhlau ya nyob twg zoo ntawm lub capacitor, tus cwj mem dub txuas nrog lub davhlau ya nyob twg tsis zoo ntawm lub capacitor, multimeter siv fais fab mov yuav yog los ntawm kev siv resistor ntawm lub capacitor them, thaum ib txwm, lub multimeter qhia tau hais tias lub charger voltage yuav yog ib tug tsawg tus nqi los ntawm ib tug maj mam nce, kom txog rau thaum cov zaub overflow. Yog hais tias lub charger pib qhia overflow "1", lub capacitor yog qhib Circuit Court; yog tias nws ib txwm qhia tau tias muaj kev tiv thaiv ruaj khov lossis "000", lub capacitor to lossis luv Circuit Court.
(6) xyuas lub Circuit Court rau thiab tawm, qhov hloov ua haujlwm yuav tsum raug hu rau "" iav, thiab tsis txhob siv cov iav tiv thaiv. Kev ntsuas ntev npaum li koj tsis hnov ib lub suab nrov, koj tuaj yeem txiav txim rau lub voj voog tsis txuas.
(7) Thaum ntsuas qhov kev tiv thaiv me me, koj yuav tsum ua ntej luv luv ntawm ob lub cwj mem, thiab nyeem qhov kev tiv thaiv ntawm tus cwj mem txuas nws tus kheej (feem ntau 0. 2 ~ 0. 3 ohms), thiaj li yuav ua kev kho rau qhov ntsuas qhov ntsuas tsis kam.
(8) Cov ntaub ntawv tiv thaiv muaj kev tiv thaiv tshaj-voltage, instantaneous mismeasurement ntawm qhov voltage nyob rau hauv lub teev ntau yam yuav tsis ua kev puas tsuaj. Piv txwv li, DT-830 digital multimeter kuj cov ntaub ntawv siab tshaj plaws tso cai tawm qhov hluav taws xob (DC lossis AC ncov) ntawm 250 volts, uas yog kev siv tsis raug ntawm cov ntaub ntawv tiv thaiv los ntsuas qhov voltage ntawm qhov ntsuas kev nyab xeeb, tab sis tsis yog hluav taws xob (xws li raws li cov roj teeb, tib neeg lub cev, thiab lwm yam) ntsuas kev tiv thaiv, uas yuav ua rau poob qis ntawm qhov tseeb ntawm cov multimeter tsis kam, los yog kev puas tsuaj.
